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Theoretical calculation of the strain-hardening exponent and the strength coefficient of metallic materials

Theoretical calculation of the strain-hardening exponent and the strength coefficient of metallic... The purpose of the present article is to theoretically calculate the strain-hardening exponent and the strength coefficient of metallic materials. For this purpose, two equations are used. The first one correlates the strain-hardening exponent and the strength coefficient with the yield stress-strain behavior, while the other one correlates the fracture strength and the fracture ductility. From these two equations, the expressions of both the strain-hardening exponent and the strength coefficient are deduced. Theoretical results from the deduced expressions are then compared with test data. Through the comparison of equations and data, if adequate test data are lacking, the deduced expressions can be used to theoretically calculate the strain-hardening exponent and the strength coefficient for metallic materials. The characteristics of the theoretical approach are simple and easy to use. In addition, the theoretical results can be further applied to examine the correctness of the test data. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Engineering and Performance Springer Journals

Theoretical calculation of the strain-hardening exponent and the strength coefficient of metallic materials

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References (7)

Publisher
Springer Journals
Copyright
Copyright © 2006 by ASM International
Subject
Materials Science; Characterization and Evaluation of Materials; Tribology, Corrosion and Coatings; Quality Control, Reliability, Safety and Risk; Engineering Design
ISSN
1059-9495
eISSN
1544-1024
DOI
10.1361/10599490524057
Publisher site
See Article on Publisher Site

Abstract

The purpose of the present article is to theoretically calculate the strain-hardening exponent and the strength coefficient of metallic materials. For this purpose, two equations are used. The first one correlates the strain-hardening exponent and the strength coefficient with the yield stress-strain behavior, while the other one correlates the fracture strength and the fracture ductility. From these two equations, the expressions of both the strain-hardening exponent and the strength coefficient are deduced. Theoretical results from the deduced expressions are then compared with test data. Through the comparison of equations and data, if adequate test data are lacking, the deduced expressions can be used to theoretically calculate the strain-hardening exponent and the strength coefficient for metallic materials. The characteristics of the theoretical approach are simple and easy to use. In addition, the theoretical results can be further applied to examine the correctness of the test data.

Journal

Journal of Materials Engineering and PerformanceSpringer Journals

Published: Mar 24, 2007

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